Antifriction-bearing.



' E. s. WOODS & A. A. WEIGBL.

ANTIFRICTION BEARING. APPLICATION4 FILED MR. 27, 1911` l,059,694 Patented Apr. 22, 1913.

2 SHEETS-SHEET 1" E. S. WOODS & A. A. WEIGEL.

ANTIFRICTION BEARING. APPLICATION FILED MAR. 27. 1911.

Patented Apr. 22, 1913.

2 SHEETS-SHEET 2.

EDWIN s. woons AnnY ARNOLD A. wnrennor ourense, ILLINOIS; sain werent AssIoNon To soin woons.

T frail whom t may concern: Be it known that We, EDWIN S. WoODS and ARNOLD A. WEIGEL, citizens of the United latatresfand residents of -Chicago, in the county of lCook and State of Illinois, have invented certain new and `useful Improvements in Antifriction-Bearings; and we vdo hereby declare thatthe following isa full',

' :'clear, and vexact description thereof, refer- Ais transmittin `.bearing plate 1n the top of. the casing and a bearing plate located on the' truck bolster.

ence being had to the accompanying drawings, andto 'the'letters of reference marked thereon, which. form' a part of this spe'eii-A cetrioli.` v i n,

This invention relates to improvements in anti-friction bearings for railroad cars and consistsv of certainl novel features of construction hereinafter described and more. particujlarly'pointed out in theappended claims.w "V The `bearing is of: that class which comprises a suspension casing securedjto the car body bolster and containing a suspended antifriction roller adapted when the lbearing i load tov engage between a In thev draWings-Figure l is 'a View representing a longitudinal, central section l V .through the casing of a side bearing contain- Y. roller travel.` Fig. 7 is a view representing y a longitudinal section of the suspensionv casing the novel features of our inventlon. Fig. 2 is a bottom plan vlew of the same; Flg. 3 1s a view representlng a' transverse section through the bearing on a plane 'indicated by4 the'line 3-f3'of Fig. 1';`F1g. 4 is a view representing a transverse` section'through the bearings on the line'.4r'-4of-Fig. 1; Fig; 5

isa View representinga longitudinal section' through the bearing fon the line 5-5 of'Fig. 4; Fig. `6 is a view representing a side elevation, of a hollow rectangular frame located within theI casing of the bearing and forming the upper membersof the guide-'ways'in which the trunnions of y the antifrictin ing. Fig.4 8 is a side elevation of one ofthe shoes which forms part of the means for cen- "tering the roller.

Specication of Letters Patent. Application ledlarch 27, 1911. Serial No. 617,224.

Patented Apr.22, 191.3.

end trunnions c, is suspended from a car bolster B. Saidcasing is in the form of a rectangular :frame longer than it is Wide, and having side walls A', A and end walls a, a. At, the tops of the end walls a, a. are provided horizontal flanges a, a', upon which rest the ends of a bearing or wear plate E, the top of which engages against the car bol- .ster '13,A and the bottom face of which 'forms a vtread for the antifriction roller C. Asv

shown herein, the bolster is provided with a rib B which engages directly against the top surface of said wearing plate withits lateral edges embraced by upright exten# sions A2, Af, of the side walls A of the sus penslon casing.

At the lcweredges of' the side walls A', A',A of the easing are provided inwardly-pro# 'jectingilanges A3, A, at the inner ed es of 4supported within the casing by lugs a extending' inwardly from the side walls, Al of said casing and engaging under horizontal, longitudinally-extending, laterally-.disposed .shoulders al, d, formedv on the side members DJJDof the frame D. The inner edges of therails A, A4 and the inner ed ves of the' side frame members D', D are indlined in Aa' Adirection* parallel 'to the ends of a vertical section of the roller as indicated in Fi '4.,`

and' act as guides for the -ends of the ro ler.

lThe 'wear-plate E,Iintermediate its ends,

rests on top of the frame-D an, confines it within the casing A. As shown' erein, said wear-plate is narrower than` said frame D 4which has upright lugs di d2 adapted totengage the lateral edges of; themen-plate and hold it against lateral shifting. 1 y The following means is provided for centering the roller C In each side wall of the suspension casing VA are formed `longitudinal chambers F F (see Figs. 4 and 5) extending :from points at eitherA side of the middle of said side wall to each end thereof.

As shown herein the end walls a a of the casing are provided with vertical hollow ribs a4 ci* by means of which said chambers -cated coiled expansion springs G carrying at their inner ends shoes J which are adapted to engage the trunnions c, c, of the roller when it 1s rolled beyondits central position in the casing. said truniiions projecting beyond the rails and into said chambers so that their ends stand in line with said shoes. At either sideof a transverse median line of the casing are located oppositely facing upper shoulders d4 ci* formed on the side members D D of the Iframe D and oppositely facing lower shoulders a a. risin from the bottoms of the grooves a, each s oulder a being located vertically below a shoulder d4, and the several shoulders standing in the plane of action of the shoes J. The movement of the shoes J toward the center of the casing under the action of their controlling springs G, is limited by said shoulders against which they are held bytheir associated springs when the roller is in its middle position. By reason of this construction the roller is allowed a slight independentfmovement when in the center of the casing Any' movement beyond this position brings the trunnions of the rollers into engagement with the shoes J on that side of the middle I, of the casing toward which it is traveling, and the continued movement of the roller Atoward that end of the casing puts said springs under compression. so that immediately the roller is relieved of its engagement with the wear-plate it is caused to travel back to the center under the expansive action of tliespringsi Should it be carried beyond the center in the opposite direction it would be caught and returned by the springv roller. This facilitates a rolling movement of the truiinion on the supporting rails which rollinginovement causes a diierent healing surface to be presented to the wearplate after eachoperation of the device.

In the tlangesA3 on the side walls of the casing are located apertures or openings a, through which idirt' or sand that may enter the channels or chambers containing the resilient I members G may drop or fall out.

This prevents the accunilationofsuch dirt.

or sand .in the chambersv which would intery fere with the eilicient operation ofthe re-` silient members. v F- The 'frame D is made of hard metal and its lateral`members D', D each act as thrust members to takethe lateral thrust of the 4antifriction member or roller C. This lat- @m1 thrust of the antifriction' member or roller may oc'cur at any time when the same is transmitting load, but comes1 into play particularly when the car to which the bearing is attached, is going around a curve.

In the side bearings shown in the draw-- ings, the lateral members ofthe frame D define the* upper limitsof the guideway in which the trunnions -of the roller travel and Y since said frame is removable from the casing .in which the roller is confined, the necessity for notches or openings in the roller conrr' ing members for the introduction of the roller, as in constructions heretofore used, is obviated. The removability of said frame D is also an advantage in case it becomes damaged. or worn whenit may be taken from the casing and., replaced by another 'similar frame. Aconstructionincluding the remov-A u able frame to' provide the upper confining ways for the trunnions and also to provide thrust members to take the lateral thrust of the antifriction member is also of great adlvantage in that a casing without'thesede-. 1

vices cast integrally with the walls thereof is 'much 4more,i'eadily cast in the case4 of the use of malleable castings, which are the 'kind preferably used in making-.side bearings for cars.

As above act to terminate the operation of the resilient devices uponlthe trunnions of the antifriction roller -before saidroller reaches the center of the casing,` 'This feature of `c0n described, the stops d4, d, ai, a,

struction is of particularimport-ance in that while the antifriction member is always're# turned toward the centerof the casing it is` not always stopped at the samepoint, that' `is to say,.aceurately at the center or atany other predetermined pointnwhich. prevents"-A the resultant wear at one point offtliebearing plates with which the antifriction roller engages. y 1"' We claim as our invention-ffl 1. In an ant-ifriction bearing,y an sided easing', an antifrictioii member supported in said casing, a' removable thrust member adapted tobe removed through the openopening in said casing and located in 'a posi= tion therein -to take the llateral thrustof said ant-ifriction member, `Irie'ans,'within the cas.- ing for providing vertical support for said thrust member. and means for retaining said thrust member in` position loiilsaid supporting means.

2. In an antifrictionbearing, an .opensided casing, an antifriction member supmovable frame' having lateral members adapted t-'oitake the lateral thrust of said jantifriction member and means for retaining said frame in said casing.

2'0 l 4.v In an antifriction bearing, a suspension casing provided at theiower edges of its lateral `walls with longitudinally extending rails, a removable-frame vsupported Within said casing having side members located above said rails, the side Walls of said casing and the side members of said frame being provided with engaging shoulders whereby `said frame is supported within said casing,

al wear-'plate supported on said iframe, the

latter having upri ht lugs adapted to enf gage the lateral e vges of said Wear-plate,

"and an antifriction roller provided with. trunnions adapted to be supported on vsaid rails of the casing and projecting into said channels or chambers. s

f5. In an antirietion. bearing, a easing, an antifriction member located therein, resilient means 'adapted to act upon saidy antifriction member and return it toward a predel termined pointpf said` casing, and means ctiirgftq terminate the operation'of said re` in pacednfrom said predetermined ther direction aii,tlleae wat Sfsi can vlded v with lon gl'tudinall'y extending chanj nels'or,V chambers located on each side of a predetermined .transverse line of said casing,l

an antifriction roller having trunnions adapted" to L be supported on said rails and 1p1'o3ect11 1g 1nto said channels or chambers.

-a-iid resilient members located in each'of said "ehannels andadapted to engage said roller tiurini'ons L" when said: Klantifriction roller s moves beyond' predetermined'v points spaced Q at: either side ofsaid predetermined trains verse line of the casing, saidantifriction ele- -men't being free 4to vmove in either direction in the space between said points.

r 7.' In an antifrietion bearing, a suspension give-vertical support to" said frame, said rev` t means-,upon ,said antfrictionmember.

ntiiriction member .free from said prede;

casing vprovided at thelowe'r edges of its lateral Walls with longitudinally extending rails, a removable frame supported within said casing Ahaving side members locatedV being provided with longitudinally extendingchnnnels or chambers located on each side -ot a predetermined transverse line of said casing, an antifriction roller having trunnions' adapted to" be supported on said 75 rails and projecting into said channels oroliembers,l andresihent members located in each of saidchannels and adapted to engage said roller 'trunnions when said antifrict-ion roller moves'beyond predetermined pointsspaeed at either side of said predetermined transverse line of, thecasing, said antifriction element being free to move in' either di-Y i rection in the space between said points.

Sg In an antifrotion bearing, a sus ension casing 'provided at the lower edges o its lateral walls with flanges-bearing' longitudi-- nally extending rails, a removable frame supported Within said 'v casing having side members located above said rails, the side '90 walls of said casing being. provided with longitudinallyextendingchannels or chambers located on 'each side ofv a-transverse median line of said casing, an antifriotion roller prof vided with trunnions adapted to be supported on said rails and projecting-into said channels or chambers, resilient members located in each of said channels and including shoes adapted to engage said roller trunnions when said antifrietionv roller moves beyond predetermined'points at either side of said'v transverse median line .of the casing, and shoulders provided respectively` on said frame and on the -tlanges on said ycasing adapted to limit the movement ofsuid shoes toward said transverse median liueffof thecasing. f "il In an antifriction bearin a suspension c v ing provided at the'lower e` ges o't. its late' With'ilanges bearing lo'ngt-udi- 'ally extending grails, :agremovable frame ppnr-v i-:Within said 'easing `bemin-f.; side mb'er's loca-ted l above" .Salid- "rail's, j the side i, iwall'so'f-sidlcasing and tlfeside meinbersof ng being pro` said frame being provided with engaging shoulders whereby said lframe =i s v'supported within said casing, a Weareplate sup ortod on said frame, the latter having uprigt lugs adapted to-engagethe lateral" edges of said Wear-plate, the slde Walls of said casing be' 120 ing provided with longitudinally extending channels or chambers locatedon each side of a transverse .median line of said casing; an antifriction roller f provided witht'runnions adapted to be supported onsaid rails l ofthe casin and projecting into said channels or cham ers, resilient members located in each oit said channels and includingslioes adapted to engage said trunnions-when said antiabove said rails, the side walls of said casing 70 friction roller moves to either side of said transverse/nelian line of the casing, and the presence of two witnesses, ths'm (uw l shoulders provided respectively on he side of March A. D. 1911. '1

' movement of' said shoes toward Said transmembers of sad movable frame and on the v flanges of said casing adapted to limit the EDWIN S`WU0DS' verse line of the casing. K Witnesses:

In bestlmony, that We dann the, fol'egolng GEORGE R. wuz-UNS, as'our mventlon We affix om.' slgnat-ures 1n T. H. ALFREDS.

ARNQLD A. WMGEL. y' 

